summaryrefslogtreecommitdiff
path: root/src/mesa/pipe
diff options
context:
space:
mode:
authorBrian <brian.paul@tungstengraphics.com>2007-10-03 14:43:57 -0600
committerBrian <brian.paul@tungstengraphics.com>2007-10-03 14:43:57 -0600
commit635c4c41bdf111462939da292d65328595d314e8 (patch)
tree99753f7b6d8ad6d8f90d08e8076c2fecd3cf9e7c /src/mesa/pipe
parent65996f27f48e2212bf36e515aba82b6876398bfd (diff)
Add outputs_written bitfield to pipe_shader_state, use it to determine if fragment shader writes Z.
Diffstat (limited to 'src/mesa/pipe')
-rw-r--r--src/mesa/pipe/p_state.h4
-rwxr-xr-xsrc/mesa/pipe/softpipe/sp_quad_fs.c3
2 files changed, 2 insertions, 5 deletions
diff --git a/src/mesa/pipe/p_state.h b/src/mesa/pipe/p_state.h
index ac9d7009cc..64c5f13f23 100644
--- a/src/mesa/pipe/p_state.h
+++ b/src/mesa/pipe/p_state.h
@@ -150,13 +150,11 @@ struct pipe_shader_state {
#endif
void *executable;
- /** These fields somewhat constitute the shader "signature" */
ubyte num_inputs;
ubyte num_outputs;
-
+ uint outputs_written; /**< bitmask */
ubyte input_semantic_name[PIPE_MAX_SHADER_INPUTS]; /**< TGSI_SEMANTIC_x */
ubyte input_semantic_index[PIPE_MAX_SHADER_INPUTS];
-
ubyte output_semantic_name[PIPE_MAX_SHADER_OUTPUTS]; /**< TGSI_SEMANTIC_x */
ubyte output_semantic_index[PIPE_MAX_SHADER_OUTPUTS];
};
diff --git a/src/mesa/pipe/softpipe/sp_quad_fs.c b/src/mesa/pipe/softpipe/sp_quad_fs.c
index d9349a2280..2b0c4366bd 100755
--- a/src/mesa/pipe/softpipe/sp_quad_fs.c
+++ b/src/mesa/pipe/softpipe/sp_quad_fs.c
@@ -116,8 +116,7 @@ shade_quad(
sizeof( quad->outputs.color ) );
/* Z */
- if (qss->stage.softpipe->fs->output_semantic_name[0]
- == TGSI_SEMANTIC_POSITION) {
+ if (qss->stage.softpipe->fs->outputs_written & 0x1) {
/* output[0] is new Z */
uint i;
for (i = 0; i < 4; i++) {